B
BES
If they have that much money get the dno to quote for its own supply then that way they can.have what they want down there. Had the same sort of problem few years ago with a stable started of with just one light and one socket ended up the stable became stables snd a summer house office so lot more required than original quote.Run about same as yours.
Of course that would put money in the DNO's pocket and not the OP's.
Yeh of course but in my case it worked less hassle and by time they had all extras i made more money installing them than the originanal quote.